21098251

素因数分解:

${\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:318

約数の個数: 16

約数和(自身を含む): 22572000

約数和(自身を除く): 1473749

約数列:

[1, 37, 43, 89, 149, 1591, 3293, 3827, 5513, 6407, 13261, 141599, 237059, 490657, 570223, 21098251]

約数ペア:

[(1, 21098251), (37, 570223), (43, 490657), (89, 237059), (149, 141599), (1591, 13261), (3293, 6407), (3827, 5513)]